CN111744757A

CN111744757A - Sand screening device for construction site

Info

Publication number: CN111744757A
Application number: CN202010730746.3A
Authority: CN
Inventors: 陈喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2020-10-09

Abstract

The invention provides a sand screening device for a construction site. Screening sand device for building site includes sieve case, intermittent type mechanism, blocking mechanism, screening mechanism and collection mechanism, and the top fixed mounting of sieve case has the feed tank, has the box through first bracing piece fixed mounting on the lateral wall of feed tank, and intermittent type mechanism installs in the inside of box, and blocking mechanism installs in the inside of feed tank for the screening mechanism of large granule impurity installs in the inside of sieve case in the separation sand, is used for carrying out the collection mechanism who collects in the sand after the screening and installs in the inside of sieve case. The sand screening device for the construction site has the advantages that sand can be stirred, dispersed and intermittently put into the sand screening device, a feed port cannot be blocked, and the sand quality is improved through multi-stage screening.

Description

Sand screening device for construction site

Technical Field

The invention relates to the technical field of building equipment, in particular to a sand screening device for a building site.

Background

Sand is an important engineering material in building engineering, sand grains are usually required to be screened on a building site to ensure that less impurities exist in finished sand, at present, on a building construction site, sand materials are usually required to be screened before concrete is mixed so as to prevent large impurities from being doped in the sand materials, and the fineness modulus of the sand is required to be ensured while large-particle stones and impurities are removed.

Present screening sand device is all comparatively simple, generally only carries out sand grain screening once, and the impurity that contains in the finished product sand of gained like this is more, can cause certain influence to the use to leaning on a large amount of sand that will need the screening between the workman to throw to screening sand device the inside, because some conglomerated sand causes accumulational phenomenon easily, may give the feed inlet and stop up.

Therefore, it is necessary to provide a sand screening device for construction site to solve the above technical problems.

Disclosure of Invention

The invention solves the technical problem of providing a sand screening device for a building site, which can stir and disperse sand and intermittently feed the sand into the sand screening device, does not cause blockage of a feed inlet, and improves the sand quality through multi-stage screening.

In order to solve the above technical problems, the present invention provides a sand sieving apparatus for a construction site, comprising: the top of the screen box is fixedly provided with a feed barrel, and the side wall of the feed barrel is fixedly provided with a box body through a first support rod; the intermittent mechanism is arranged inside the box body; a plugging mechanism mounted inside the feedwell; the screening mechanism is used for separating large-particle impurities in the sand and is arranged inside the screen box; and the collecting mechanism is used for collecting the screened sand and is arranged in the screen box.

Preferably, the blocking mechanism comprises a rotating rod and a blocking plate, the rotating rod is rotatably connected to the bottom of the box body, the blocking plate is fixedly connected with the bottom of the rotating rod and is in contact with the top of the screen box, a sand falling opening matched with the blocking plate is formed in the top of the screen box, and a stirring mechanism is further installed on the rotating rod.

Preferably, the intermittent mechanism includes motor, initiative carousel, driving lever, round pin, driven turntable and draw-in groove, motor fixed mounting is on the inside wall of box, the output fixed connection of initiative carousel and motor, driven turntable and bull stick are located the inside one end fixed connection of box, the bottom fixed connection of driving lever and initiative carousel, the one end fixed connection of initiative carousel is kept away from with the driving lever to round pin, the draw-in groove with round pin matched with has been seted up at driven turntable's top.

Preferably, rabbling mechanism is including stirring board, dispersion pole and pressure mouth, stirring board fixed mounting is on the pole wall of bull stick, fixed mounting has the dispersion pole that the equidistance distributes on the lateral wall of stirring board, the pressure mouth that the equidistance distributes has still been seted up on the lateral wall of stirring board.

Preferably, the side wall of the stirring plate is provided with a scraping blade through a connecting block, and the scraping blade is in contact with the inner side wall of the feeding barrel.

Preferably, screening mechanism includes first sieve and second sieve, the equal fixed mounting of first sieve and second sieve is on the inside wall of sieve case, just first sieve all is the slope setting with the second sieve, the second sieve passes the outside extension of lateral wall of sieve case.

Preferably, the first sieve plate is positioned above the second sieve plate, and the filter holes on the first sieve plate are larger than the filter holes on the second sieve plate.

Preferably, collect the mechanism and include drive conveyer belt and collect the box, fixed mounting has two sets of drive conveyer belts on the inside wall of sieve case, and is two sets of drive conveyer belt is located the below of first sieve and second sieve respectively, and is two sets of drive conveyer belt's blanking end passes the outside extension of lateral wall of sieve case, fixed mounting has the collection box of mutually supporting with drive conveyer belt on the lateral wall of sieve case.

Preferably, a second supporting rod is fixedly installed on the side wall of the screen box, and a feeding groove used for placing sand into the feeding barrel is fixedly installed at the top of the second supporting rod.

Compared with the related art, the sand screening device for the construction site provided by the invention has the following beneficial effects:

the invention provides a sand screening device for a building site, which comprises a sand screening mechanism, a sand feeding mechanism, a sand discharging mechanism, a sand screening mechanism and a sand screening mechanism, wherein the sand screening mechanism is used for feeding sand to be screened into a feeding barrel, an intermittent mechanism drives a rotating rod to rotate intermittently, so that a blocking plate also rotates intermittently, a sand discharging opening is opened after the blocking, the sand is discharged into a screening box intermittently for screening, the sand in the feeding barrel can be stirred and separated by the stirring mechanism, the screening is prevented from being incomplete due to the agglomeration of the sand, and the sand can be conveniently discharged from the sand discharging opening to prevent the blockage during the stirring of the sand.

2. Carry out the secondary screening to the sand that falls from the feed cylinder through first piston board and second sieve, improve the screening quality of sand, and the large granule impurity that sieves out can slide to the second sieve on the first sieve that the slope set up from, slide to the outside of sieve case on the second sieve again to can collect the fine sand after being screened through collecting the mechanism.

Drawings

FIG. 1 is a schematic structural view of a sand screening device for construction site according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of the sieve box shown in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at A shown in FIG. 2;

fig. 4 is a schematic view of the internal structure of the case shown in fig. 1.

Reference numbers in the figures: 1. sieve case, 2, feed cylinder, 3, the box, 4, jam mechanism, 41, bull stick, 42, closure plate, 5, rabbling mechanism, 51, stirring board, 52, dispersion pole, 53, pressure mouth, 6, intermittent type mechanism, 61, motor, 62, initiative carousel, 63, driving lever, 64, round pin, 65, driven turntable, 66, draw-in groove, 7, screening mechanism, 71, first sieve, 72, second sieve, 8, collection mechanism, 81, drive conveyer belt, 82, collect the box, 9, the husky mouth that falls, 9a, doctor-bar, 9b, connecting block, 9c, first bracing piece, 9d, second bracing piece, 9e, put in the groove.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural view of a sand sieving device for a construction site according to a preferred embodiment of the present invention; FIG. 2 is a schematic view of the internal structure of the sieve box shown in FIG. 1; FIG. 3 is an enlarged schematic view of the structure at A shown in FIG. 2; fig. 4 is a schematic view of the internal structure of the case shown in fig. 1. Screening sand device for building site includes: sieve case 1, intermittent type mechanism 6, jam mechanism 4, screening mechanism 7 and collection mechanism 8, the top fixed mounting of sieve case 1 has feed barrel 2, has box 3 through first bracing piece 9c fixed mounting on the lateral wall of feed barrel 2.

In the specific implementation process, as shown in fig. 2, fig. 3 and fig. 4, the blocking mechanism 4 includes a rotating rod 41 and a blocking plate 42, the rotating rod 41 is rotatably connected to the bottom of the box body 3, the blocking plate 42 is fixedly connected to the bottom of the rotating rod 41, the blocking plate 42 is in contact with the top of the screen box 1, the top of the screen box 1 is provided with a sand falling port 9 matched with the blocking plate 42, and the rotating rod 41 is further provided with a stirring mechanism 5.

Intermittent mechanism 6 includes motor 61, initiative carousel 62, driving lever 63, round pin 64, driven turntable 65 and draw-in groove 66, motor 61 fixed mounting is on the inside wall of box 3, initiative carousel 62 and motor 61's output fixed connection, driven turntable 65 is located the inside one end fixed connection of box 3 with bull stick 41, driving lever 63 and initiative carousel 62's bottom fixed connection, the one end fixed connection of initiative carousel 62 is kept away from with driving lever 63 to round pin 64, draw-in groove 66 with round pin 64 matched with has been seted up at driven turntable 65's top.

The stirring mechanism 5 comprises a stirring plate 51, dispersion rods 52 and pressure ports 53, wherein the stirring plate 51 is fixedly installed on the rod wall of the rotating rod 41, the dispersion rods 52 which are distributed at equal intervals are fixedly installed on the side wall of the stirring plate 51, and the pressure ports 53 which are distributed at equal intervals are also formed in the side wall of the stirring plate 51.

The side wall of the stirring plate 51 is provided with a scraping blade 9a through a connecting block 9b, and the scraping blade 9a is contacted with the inner side wall of the feeding barrel 2.

It should be noted that: firstly, sand to be screened is put into the feeding barrel 2, at the moment, the driving turntable 62 fixedly connected with the output end of the driving turntable is driven to rotate through the work of the motor 61, the driving turntable 62 drives the shifting lever 63 provided with the round pin 64 to rotate, the shifting lever 63 rotates for a circle and is clamped inside the clamping groove 66 of the driven turntable 65 through the round pin 64, and the driven turntable 65 is driven to rotate for a short distance, so that the driven turntable 65 realizes intermittent motion, the rotating rod 41 fixedly connected with the driven turntable 65 is driven to rotate intermittently, the rotating rod 41 drives the blocking plate 42 to rotate intermittently, the sand falling port 9 is blocked and released continuously, the sand in the feeding barrel 2 can fall into the sieve box 1 through the sand falling port 9 for screening intermittently, the stirring plate 51 can also be driven to rotate when the rotating rod 41 rotates, the stirring plate 51 can stir and separate the sand in the feeding barrel 2, and the blockage of the sand falling port 9 caused by sand agglomeration is prevented, and dispersion pole 52 on the stirring board 51 can further stab the sand and scatter, and presses mouth 53 also to make the continuous sand that passes of sand scatter the sand, and doctor-blade 9a on the stirring board 53 can scrape the inner wall of feed cylinder 2 in addition, prevents that the sand from adhering on the inner wall of feed cylinder 2 to make loose sand not only can be quick fall from sand falling mouth 9, still be convenient for by the screening.

Referring to fig. 1 and 2, the screening mechanism 7 includes a first screening deck 71 and a second screening deck 72, the first screening deck 71 and the second screening deck 72 are both fixedly mounted on the inner side wall of the screen box 1, the first screening deck 71 and the second screening deck 72 are both arranged in an inclined manner, and the second screening deck 72 extends outwards through the side wall of the screen box 1.

The first screening deck 71 is positioned above the second screening deck 72 and the filter openings on the first screening deck 71 are larger than the filter openings on the second screening deck 72.

Collect mechanism 8 and include drive transmission area 81 and collect box 82, fixed mounting has two sets of drive transmission area 81 on the inside wall of sieve case 1, and two sets of drive transmission area 81 are located the below of first sieve 71 and second sieve 72 respectively, and the blanking end of two sets of drive transmission area 81 passes the outside extension of lateral wall of sieve case 1, and fixed mounting has the collection box 82 of mutually supporting with drive transmission area 81 on the lateral wall of sieve case 1.

It should be noted that: the intermittent sand falling port 9 for the sand which is stirred to be loose falls on the first sieve plate 71 on the sieve box 1 for sieving, one part of the sieved sand can also slide on the second sieve plate 72 for secondary sieving, so that the quality of the sand can be improved, the sand which is sieved from the first sieve plate 71 and the second sieve plate 72 can fall on the driving conveyer belt 81 to be conveyed into the collecting box 82 for collecting, and large-particle impurity particles which are sieved can slide on the second sieve plate 72 from the first sieve plate 71 which is obliquely arranged, and then slide out of the sieve box 1.

Referring to fig. 1, a second support rod 9d is fixedly installed on the side wall of the screen box 1, a feeding groove 9e for placing sand into the feeding barrel 2 is fixedly installed at the top of the second support rod 9d, the screen is placed in the feeding groove 9e, and the sand slides into the feeding barrel 2 from the feeding groove 9 e.

The working principle of the sand screening device for the construction site provided by the invention is as follows:

firstly, sand to be screened is put into the feeding barrel 2, at the moment, the driving turntable 62 fixedly connected with the output end of the driving turntable is driven to rotate through the work of the motor 61, the driving turntable 62 drives the shifting lever 63 provided with the round pin 64 to rotate, the shifting lever 63 rotates for a circle and is clamped inside the clamping groove 66 of the driven turntable 65 through the round pin 64, and the driven turntable 65 is driven to rotate for a short distance, so that the driven turntable 65 realizes intermittent motion, the rotating rod 41 fixedly connected with the driven turntable 65 is driven to rotate intermittently, the rotating rod 41 drives the blocking plate 42 to rotate intermittently, the sand falling port 9 is blocked and released continuously, the sand in the feeding barrel 2 can fall into the sieve box 1 through the sand falling port 9 for screening intermittently, the stirring plate 51 can also be driven to rotate when the rotating rod 41 rotates, the stirring plate 51 can stir and separate the sand in the feeding barrel 2, and the blockage of the sand falling port 9 caused by sand agglomeration is prevented, the dispersing rod 52 on the stirring plate 51 can further scatter sand, the pressing port 53 can enable the sand to continuously penetrate through to disperse the sand, the scraping blade 9a on the stirring plate 53 can scrape the inner wall of the feed barrel 2 to prevent the sand from adhering to the inner wall of the feed barrel 2, so that the loose sand can not only quickly fall from the sand falling port 9, but also be conveniently screened, the intermittent sand falling port 9 of the stirred loose sand can be screened after falling on the first screen plate 71 on the screen box 1, a part of the screened sand can also slide on the second screen plate 72 to be screened for the second time, so that the quality of the sand can be improved, the sand screened from the first screen plate 71 and the second screen plate 72 can fall on the driving conveyor belt 81 to be conveyed into the collecting box 82 to be collected, and the large-particle impurity particles screened can slide on the first screen plate 71 which is obliquely arranged to the second screen plate 72, then roll off sieve case 1 again to can stir the dispersion and intermittent type put in inside the screening sand device to the sand, can not cause the feed inlet to block up, and improve the sand quality through the multistage screening.

The motor 41 adopts a Y80M1-2 model, the motor 41 operates as a conventional circuit, a power supply interface of the motor 41 is connected with a power supply system through a switch to realize the rotation control of the motor 41, and the related circuits and control in the invention are the prior art and are not described in detail herein.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A sand screening device for construction sites, comprising:

the screen box comprises a screen box (1), wherein a feeding barrel (2) is fixedly installed at the top of the screen box (1), and a box body (3) is fixedly installed on the side wall of the feeding barrel (2) through a first supporting rod (9 c);

the intermittent mechanism (6), the said intermittent mechanism (6) is installed inside the container body (3);

the blocking mechanism (4), the said blocking mechanism (4) is installed inside the feed barrel (2);

the screening mechanism (7) is used for separating large-particle impurities in sand, and the screening mechanism (7) is arranged inside the screen box (1);

and the collecting mechanism (8) is used for collecting the screened sand, and the collecting mechanism (8) is arranged in the screen box (1).

2. The sand screening device for the construction site according to claim 1, wherein the blocking mechanism (4) comprises a rotating rod (41) and a blocking plate (42), the rotating rod (41) is rotatably connected to the bottom of the box body (3), the blocking plate (42) is fixedly connected with the bottom of the rotating rod (41), the blocking plate (42) is in contact with the top of the screen box (1), the top of the screen box (1) is provided with a sand falling port (9) matched with the blocking plate (42), and the rotating rod (41) is further provided with a stirring mechanism (5).

3. The sand screening device for the construction site as claimed in claim 1, wherein the intermittent mechanism (6) comprises a motor (61), a driving turntable (62), a shifting rod (63), a round pin (64), a driven turntable (65) and a clamping groove (66), the motor (61) is fixedly installed on the inner side wall of the box body (3), the driving turntable (62) is fixedly connected with the output end of the motor (61), the driven turntable (65) is fixedly connected with one end of the rotating rod (41) located inside the box body (3), the shifting rod (63) is fixedly connected with the bottom of the driving turntable (62), the round pin (64) is fixedly connected with one end of the shifting rod (63) far away from the driving turntable (62), and the clamping groove (66) matched with the round pin (64) is formed in the top of the driven turntable (65).

4. The sand screening device for the construction site as claimed in claim 2, wherein the stirring mechanism (5) comprises a stirring plate (51), dispersion rods (52) and pressure ports (53), the stirring plate (51) is fixedly installed on the rod wall of the rotating rod (41), the dispersion rods (52) are fixedly installed on the side wall of the stirring plate (51) and are distributed at equal intervals, and the pressure ports (53) are further opened on the side wall of the stirring plate (51) and are distributed at equal intervals.

5. The sand screening device for construction sites according to claim 4, wherein the stirring plate (51) is provided at a side wall thereof with a scraper (9a) by a connecting block (9b), and the scraper (9a) is in contact with an inner side wall of the feed tank (2).

6. The sand screening device for the construction site as claimed in claim 1, wherein the screening mechanism (7) comprises a first screening deck (71) and a second screening deck (72), the first screening deck (71) and the second screening deck (72) are both fixedly mounted on the inner side wall of the screen box (1), the first screening deck (71) and the second screening deck (72) are both arranged in an inclined manner, and the second screening deck (72) extends outwards through the side wall of the screen box (1).

7. A sand screening device for construction sites according to claim 6, wherein the first screening deck (71) is positioned above the second screening deck (72) and wherein the screening holes on the first screening deck (71) are larger than the screening holes on the second screening deck (72).

8. The sand screening device for the construction site as claimed in claim 1, wherein the collecting mechanism (8) comprises a driving conveyor belt (81) and a collecting box (82), two sets of driving conveyor belts (81) are fixedly installed on the inner side wall of the screen box (1), two sets of driving conveyor belts (81) are respectively positioned below the first screen plate (71) and the second screen plate (72), the blanking ends of the two sets of driving conveyor belts (81) extend outwards through the side wall of the screen box (1), and the collecting box (82) matched with the driving conveyor belts (81) is fixedly installed on the outer side wall of the screen box (1).

9. The sand screening device for construction sites according to claim 1, wherein a second support rod (9d) is fixedly installed on the side wall of the screen box (1), and a feeding groove (9e) for putting sand into the feeding barrel (2) is fixedly installed at the top of the second support rod (9 d).